Typewriting machine



P. STEINKBAUS.

TYPEWRITING MACHINE.

APPLICATION FILED APR. I3, 1921.

ATTORNEYS UNITED STATES PATENT OFFICE.

PAUL sTmNKnAUs, onnnw YORK, rr. Y.

` TYPEWRI'IING MACHINE l Specification of Letters Patent.

.Patented Apr. 25,1922.

Application med April 1s, 1921. serial No. 4so,s75.

. which the following is a full, clear, and exact description. A

The invention relates to embossing and penetrating typewr'iting machines for use by the blind, and its ok'ect is to provide certain new and useful improvements in embossing and penetrating typewritingmachines whereby the blind as well as seeing persons arev enabledv to produce each character in both Braille cells and type and hence enable blind or seeing persons to read thefcharacters produced on the sheet of paper.

Another object is to permit the improvements to be applied'to the various styles of typewriting machines without requiringl entire reconstruction thereof. 1

With these and other objects in View, the invention .consists'of certain novel features of construction as hereinafter shown and described and then specifically pointed out'in the claims.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of thisspecification, in which similar characters or reference indicate' corresponding parts in all the views.

.Figure 1 is a cross section of a Remington typewriting machine provided with the improvement;

Figure 2 is a reduced front elevation of the same;A

Figure 3 is an enlarged cross section of one of the keys in position on the platens for producing both Braille cells vand type on a sheet of paper;

Figure 4 is a face view of the male die for producing B raille cells; l

Figures 5, 6 and 7 are face views of the heads of several of the type bars;

Figure 8 is a face view of a sample of the produced reading matter;

Figure 9 is a cross section of the same on the line 9-9 of Figure 8;

Figure 10 is a side elevation of the lingerpieceof one of the keys; and

Figure 11 is a plan view of the same.

Each of the keys 10 is pivotally connected with a type bar 11 provided 'with' a head 12 having corresponding capital and lower case 'platen coacting witi 'the head 12 of each type bar 11, and hence the same character is produced in type and a types 13 and 14 produced thereon in the usual manner.v Each of the heads 12 is also provided on its face with one or more depressions 15, preferably located above the capital type 13. The depression or de ressions 15 are arranged according to the raille cells for the 'different-.characters of the alphabet,

lnumerals', and punctuation marks and the .l1ke, and with the said depressions 15 coacts a corresponding plunger or plungers 1 6 mounted to slide transversely in a bearing 17 supported on a suitable framework 18 attached'to the framework 19 of the typewriting machine. Each of the plungers or dies 16 is provided at its rear end with a head 25 mounted to slide in a bore 26 formed in the bearing 17 and is pressed von by aspring 27 mountedl in the said bore 26. The

springs 27 lnormally project theplungers 16 beyond the face of the bearing 17 and hence when a key is actuated the corresponding or 'plungers 16 coact to produce a- Braille cell or cells l30 on the sheet of paper held on. the usual cylinder 35. mounted onthe cardepression or depressions 15 and the plunger' riage 36 ofthe typewriting machine. It will l be noticed that at the timethe Braille cell or cells 30,.representing one character, are produced on a sheet of paper 31 an impression in'type of the same character is made by the type 14 on the' paper held against a platenv 40, which is preferably a f iat platen instead of the cylinder 35. It is understood that a ribbon 41 extends in front of the paper opposite the platen 40 to cause an impression of the corresponding type character on the' sheet of paper 31.

' From the. foregoing it will be seen that by the arrangement described the plungers 16 and their bearings 17 form an embossing the depressions 15 on Braille cell depression or depressions on the sheet of paper to enable both a blind and a seeing person to read the said character.

In order to enable the blind 'and the seeing person to select the proper key 10, the fingerpiece 50 thereof is provided with a character 51 corresponding to the characters 13 and 14 of the type bar 11 actuated by the corresponding key, and on the ingerpiece 50 is produced a corresponding Braille cell or cells 52 to enable the blind person Vto select the proper key. l

Having thus described my invention, I

claim as new and desire to secure hy Letters Patent:

1.. In a typewriting Inachine, a type barhaving the same character in type anda Braille 'cell- `depression or depressions, a:

,platen adapted to coact with the said type character, anda platen having Braille cell' die members" adapted to coactwith' the said Braille cell depression to 'produce'a Braille character corresponding to thetype character.

2. 'In a typewriting machine,.a type bar :having the saine character in type and in a Braille cell depression or depressions, a

character, and a platen having spring.

pressed pins adapted to coact with the said y key depression or'depressions to produce the same character intan ible form.

STEINKRAUS. -V 

